• Code: 312.291
• Description: Stapler Fault. The Staple Home Sensor has not switched from Off to On within the specified time after the Staple Motor had started rotating forward. The Staple Home Sensor did not turn On within the specified time after the Staple Motor had started rotating backward.
• Remedy: • Check the Stapler Head for obstructions
  Enter dc330 Component Control [012-046] and [012-047], Staple Motor, (PL 24.33 Item 9), alternately. Select Start. The Staple Motor runs. Y↓ N→Select Stop. Go to Finisher Stapler Control. Check continuity between the Stapler Head and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Stapler Unit. If the problem continues, replace the Finisher Main PWB. Select Stop. Select [012-244], Staple Home Sensor. Select [012-046] and [012-047], Staple Motor, (PL 24.33 Item 9), alternately. Select Start. The display changes Y↓ N→Select Stop. Go to Finisher Stapler Control. Check continuity between the Stapler Home Sensor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Stapler Unit. If the problem continues, replace the Finisher Main PWB. Select Stop. Check the following: • The wire between the Staple Head and the Finisher PWB for damage If the above checks are OK, replace the Finisher Main PWB.

• Code: 312.295
• Description: Stapler Move Position Sensor On Fault. • After the Stapler started moving to the staple position, the Stapler Move Position Sensor did not turn On within 2sec. • After the Stapler completed moving to the Staple Position, the Stapler Move Position Sensor did not turn On.
• Remedy: Check the Stapler, Base Frame, and Rail (PL 23.8) for freedom of movement.
  Execute dc330 Component Control [012-241], Stapler Move Position Sensor. Move the Stapler by hand from the Home position to the staple position and back. The display changes. Y↓ N→Check the wire between J8885 pin 2 on the Stapler Move Position Sensor and P/J8981 pin 2 on the Finisher PWB for an open or short circuit, or loose or damaged connectors. The wire is OK. Y↓ N→Repair/replace as required. Measure the voltage between P/J8981, pins 3 and 1 on the Finisher PWB (Staple Positioning). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB (PL 23.16). Measure the voltage between P/J8981 pin 2 on the Finisher PWB and GND (Staple Positioning). Move the Stapler by hand from the Home position to the staple position and back. The voltage changes. Y↓ N→Replace the Stapler Move Position Sensor (PL 23.8 Item 8). Replace the Finisher PWB. Alternately execute dc330 Component Control [012-43], Staple Move Motor Rear and [012- 040], Staple Move Motor Front. The Stapler Move Motor moves. Y↓ N→Check the wires between P/J8981 pins 13~16 on the Finisher PWB and P/J8888 on the Stapler Move Motor (Staple Positioning) for an open or short circuit, or loose or damaged connectors. The wires are OK. Y↓ N→Repair/replace as required. Replace the Staple Move Motor. If the problem persists, replace the Finisher PWB (PL 23.16). Go to Staple Positioning. Check for an intermittent connection. If the check is good, replace the Stapler Assembly. If the problem continues, replace the Finisher PWB.

• Code: 312.295
• Description: Stapler Move Position Sensor On Fault. Stapler Move Position Sensor is not turned On within a specified time. Stapler Move Position Sensor not turned On when home operation is completed. Stapler Move Position Sensor is not turned On after the stop following Stapler Move Position Sensor On.
• Remedy: • Check Actuator for deformation • Check Stapler Move Position Sensor for improper installation • Check Stapler Move Position Sensor connectors for connection failure • Check Staple Move Motor connectors for connection failure • Check Staple Guide for deformation
  Enter dc330 Component Control [012-046] and [012-047], Stapler Move Motor (PL 24.33 Item 9), alternately. Select Start. The Staple Move Motor energizes. Y↓ N→Select Stop. Go to Finisher Staple Positioning. Check continuity between the Stapler Move Motor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Staple Move Motor (PL 24.33 Item 9). If the problem continues, replace the Finisher Main PWB. Select Stop. Select dc330 Component Control [012-241], Stapler Move Position Sensor (PL 24.33 Item 5). Select Start. Block/unblock the Stapler Move Position Sensor. The display changed. Y↓ N→Select Stop. Go to Finisher Staple Positioning. Check continuity between the Stapler Move Position Sensor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Stapler Move Position Sensor (PL 24.33 Item 5). If the problem continues, replace the Finisher Main PWB. Select Stop. Check the following: • Obstructions on the Stapler Upper Rail • Stapler Move Motor Gear If the above checks are OK. replace the Finisher Main PWB.

• Code: 312.296
• Description: Staple Move Sensor Off Fault. • After the Stapler started moving to the Staple Position and the Staple Move Sensor turned Off, the Staple Move Sensor did not turn Off within 500ms. • After the Staple Position had been fixed, the Staple Move Sensor turned Off. • After the Staple Move Sensor turned On when paper passed through the Dual Staple 1 Position while moving to the Rear Staple Position, the Staple Move Sensor did not turn Off within 500ms.
• Remedy: Check the Stapler, Base Frame, and Rail (PL 23.8) for freedom of movement.
  Execute dc330 Component Control [012-241], Stapler Move Position Sensor. Move the Stapler by hand from the Home position to the staple position and back. The display changes. Y↓ N→Check the wire between J8885 pin 2 on the Stapler Move Position Sensor and P/J8981 pin 2 on the Finisher PWB for an open or short circuit, or loose or damaged connectors. The wire is OK. Y↓ N→Repair/replace as required. Measure the voltage between P/J8981, pins 3 and 1 on the Finisher PWB (Staple Positioning. The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8981 pin 2 on the Finisher PWB and GND (Staple Positioning). Move the Stapler by hand from the Home position to the staple position and back. The voltage changes. Y↓ N→Replace the Stapler Move Position Sensor (PL 23.8 Item 8). Replace the Finisher PWB (PL 23.16). Alternately execute dc330 Component Control [012-43], Staple Move Motor Rear and [012- 040], Staple Move Motor Front. The Stapler Move Motor moves. Y↓ N→Check the wires between P/J8981 pins 13~16 on the Finisher PWB and P/J8888 on the Stapler Move Motor (Staple Positioning) for an open or short circuit, or loose or damaged connectors. The wires are OK. Y↓ N→Repair/replace as required. Replace the Staple Move Motor. If the problem persists, replace the Finisher PWB. Go to Staple Positioning. Check for an intermittent connection. If the check is good, replace the Stapler Assembly. If the problem continues, replace the Finisher PWB.

• Code: 312.296
• Description: Stapler Move Position Sensor Off Fault. Stapler Move Position Sensor is not turned Off within a specified time Stapler Move Position Sensor is not turned Off when home operation is completed. Stapler Move Position Sensor is not turned Off after the stop following Stapler Move Position Sensor Off.
• Remedy: • Check Actuator for deformation • Check Stapler Move Position Sensor for improper installation • Check Stapler Move Position Sensor connectors for connection failure • Check Staple Move Motor connectors for connection failure • Check Staple Guide for deformation
  Enter dc330 Component Control [012-046] and [012-047], Stapler Move Motor (PL 24.33 Item 9), alternately. Select Start. The Staple Move Motor energizes. Y↓ N→Select Stop. Go to Finisher Staple Positioning. Check continuity between the Stapler Move Motor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Stapler Move Motor. If the problem continues, replace the Finisher Main PWB. Select Stop. Select dc330 Component Control [012-241], Stapler Move Position Sensor (PL 24.33 Item 5). Select Start. Block/unblock the Stapler Move Position Sensor. The display changed. Y↓ N→Select Stop. Go to Finisher Staple Positioning. Check continuity between the Stapler Move Position Sensor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Stapler Move Position Sensor (PL 24.33 Item 5). If the problem continues, replace the Finisher Main PWB. Select Stop. Check the following: • Obstructions on the Stapler Upper Rail • Stapler Move Motor Gear If the above checks are OK. replace the Finisher Main PWB.

• Code: 312.300
• Description: Eject Cover Open. Eject Cover Switch open was detected.
• Remedy: • Ensure that the Eject Cover is down. • Check Eject Cover Switch for improper installation. • Check Eject Cover Switch connectors for connection failure. • Check Actuator part for deformation
  Enter dc330 Component Control [012-300], Eject Cover Switch (PL 23.11 Item 37). Select Start. Actuate the Eject Cover Switch. The display changes Y↓ N→Select Stop. Check continuity of the Eject Cover Switch ( J8889, pin 1 to pin 2). The continuity check is OK. Y↓ N→Replace the Eject Cover Switch (PL 23.11 Item 37). Check continuity between the Eject Cover Switch and the Finisher PWB ( J8982 pin 1 to. J8889 pin 1, and J8889 pin2 to J8889 pin 7. If the check is OK, replace the Finisher PWB (PL 23.16). Select Stop. If the problem continues, replace the Finisher PWB.

• Code: 312.300
• Description: Eject Cover Open. Eject Cover Switch open was detected.
• Remedy: • Ensure that the Eject Cover is down • Check Eject Cover Switch for improper installation • Check Eject Cover Switch connectors for connection failure • Check Actuator part for deformation
  Enter dc330 Component Control [012-300], Eject Cover Switch (PL 24.34 Item 21). Select Start. Actuate the Eject Cover Switch. The display changes Y↓ N→Select Stop. Check continuity of the Eject Cover Switch. The continuity check is OK. Y↓ N→Replace the Eject Cover Switch. Go to Finisher Interlocks. Check continuity between the Eject Cover Switch and the Finisher PWB. If the check is OK, replace the Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.302
• Description: Finisher Front Cover Open.
• Remedy: • Check the installation of the H-Transport Open Sensor • Opening/closing of the Finisher H-Transport Cover.
  Execute dc330 Component Control [012-302], Front Door Interlock Switch. Open/close the Finisher Front Cover. The display changes. Y↓ N→Open the Front Door and cheat the Front Door Interlock Switch The display changes. Y↓ N→Check the wires between J8982 pin 3 and J8891 pin 2B, and from J8891 pin 2A to J8982 pin 3 for an open or short circuit, or a loose or damaged connector. The wires are OK. Y↓ N→Repair/reconnect as required. Remove the cheater. Measure the voltage between J8891 pin 2A on the Front Door Interlock Switch and GND (Finisher Interlock Switching). The voltage is approx. +5VDC. Y↓ N→Check the wire from J8891 pin 2A to J8982 pin 3 for an open or short circuit, or a loose or damaged connector. If the wires are OK, replace the Finisher PWB. Cheat the Interlock Switch. The voltage drops to 0 VDC. Y↓ N→Replace the Front Door Interlock Switch (PL 23.16). Replace the Finisher PWB. Check the actuator for damage or misalignment Check the Interlock circuit for an intermittent condition (Finisher Interlock Switching). If the problem continues, replace the Finisher PWB.